Artificial propagation method for sturgeon

Abstract

Synchronous induced spawning for parent fish better solves the problem of sexual maturity through synchronous development of female and male parent fish. The invention discloses an artificial propagation method for sturgeon, which comprises the steps of selection of parent fish, parent fish rearing, induced spawning, artificial insemination, zygote hatching, artificial selection of fish fry, and fish fry rearing. In the artificial propagation method, by artificially reducing water temperature and ambient environment temperature, micro water flow is formed to simulate the ecological environment for the reproduction of sturgeon, the simulated ecological environment is similar to the conditions necessary for the reproduction of wild sturgeon in the natural world, and the artificial low temperature factor lasts for a long time, so as to always guarantee the low temperature environment for the maturity and awaiting delivery of parent fish of the sturgeon, and meet other condition requirements, so that the parent fish can rut and spawn all year round to finally achieve the factory production of the sturgeon fry; meanwhile, in the artificial propagation method, female parent fish and male parent fish of the sturgeon are separately put into an artificially simulated ecological environment for inducing oestrus, and then the degree of sexual maturity of the parent fish is identified to select the parent fish with basically developed sexual maturity.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and more specifically, the invention relates to an artificial breeding method for sturgeons in the high-temperature climate in the south. Background technique [0002] At present, domestic sturgeon artificial breeding technology has become more and more mature. However, the artificial breeding of sturgeon is still limited to the north. Many aquaculture enterprises in the south do not have the ability to artificially breed sturgeon seedlings, and most of them directly buy them from the north. There are two reasons: first, there is a lack of technicians who are relatively skilled in artificial reproduction of sturgeon, and second, more importantly, the high temperature in the south directly limits the artificial reproduction of sturgeon. The Chinese invention patent with the application number 200710070446.1 discloses a Siberian sturgeon artificial reproduction technology that is not affected ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the artificial reproduction of the southern sturgeon and provide a new method for the artificial reproduction of the sturgeon